Horsetail Fall in Yosemite National Park in California is pictured from a position along the Merced River off Southside Drive in Yosemite Valley just before sunset as it glows. The phenomenon of this vista only occurs for only few days in February each year when several weather and climatic conditions are just right.
(REUTERS/Phil Hawkins)
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A rare total cloud inversion is pictured at Mather Point on the South Rim of the Grand Canyon National Park in Grand Canyon, Arizona. Cloud inversions are formed through the interaction of warm and cold air masses.
(REUTERS/NPS photo by Erin Whittaker/Handout)
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A man photographs a boy at Zabriskie Point in Death Valley National Park, California. The park is the largest national park in the U.S. outside Alaska and has recorded the hottest temperatures in the U.S. It has the lowest elevation in the Western Hemisphere at 282 feet below sea level.
(REUTERS/Lucy Nicholson)
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